rpmbuild -ba --define "build_rh7 1" apcupsd.spec

rpmbuild --rebuild --define build_rh7 1" apcupsd-x.x.x-x.src.rpm

How do I control whether usb support gets built? By default stan- dard serial port support will be built and the apcupsd-std package will be produced. To get the usb package and support either set the

%define usb 0

to

%define usb 1

in the spec file directly or pass it to rpmbuild on the command line:

rpmbuild -ba --define "build_rh7 1" --define "build_usb 1" apcupsd.spec

other defines are used? The only other define is for the initdir for the daemon control script. On RedHat systems this is set to /etc/rc.d/init.d/. You would only need to edit this if packaging for a platform with uses a different directory.

I’m getting errors about not having permission when I try to build the packages. Do I need to be root? No, you do not need to be root and, in fact, it is better practice to build rpm packages as a non-root user. Apcupds packages are designed to be built by a regular user but you must make a few changes on your system to do this. If you are building on your own system then the simplest method is to add write permissions for all to the build directory (/usr/src/redhat/). To accomplish this execute the following command as root:

chmod -R 777 /usr/src/redhat

If you are working on a shared system where you can not use the method above then you need to recreate the /usr/src/redhat directory tree with all of it’s subdirectories inside your home directory. Then create a file named

.rpmmacros

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APC UPS control system manual Spec file directly or pass it to rpmbuild on the command line, 201
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UPS control system specifications

APC UPS (Uninterruptible Power Supply) control systems are vital components for ensuring uninterrupted power supply and protecting critical equipment from power interruptions, surges, or fluctuations. Designed by Schneider Electric, APC UPS systems are renowned for their high quality and reliability. They utilize advanced technologies and features to suit diverse applications, from home offices to large industrial settings.

One of the main features of APC UPS systems is the ability to provide backup power during outages. This is achieved through a battery system that activates immediately when the mains power fails. This seamless transition minimizes downtime and ensures that electronic devices continue to operate, protecting data integrity and equipment lifespan.

Another significant characteristic of APC UPS systems is their intelligent management capabilities. Most models come with PowerChute software, which provides users with real-time monitoring of power conditions and the status of the UPS. This software allows for graceful shutdowns of connected devices during extended outages, thereby preventing data loss and damage to devices.

APC UPS systems also incorporate advanced technologies such as Automatic Voltage Regulation (AVR). AVR technology ensures that the output voltage remains stable by correcting minor fluctuations without switching to battery mode. This not only prolongs the battery life but also provides a consistent power supply to the connected equipment.

Thermal management is another critical aspect of APC UPS control systems. The design often includes efficient cooling systems that prevent overheating, ensuring optimal performance and longevity of the unit. Some models feature EcoMode, which reduces energy consumption and lowers operational costs by working at high efficiency only when battery backup is not required.

APC UPS systems are designed with scalability in mind. Users can easily add more batteries or connect additional UPS units to accommodate growing power needs. Features such as hot-swappable batteries and modular design facilitate easy upgrades and servicing without interrupting power supply.

In terms of connectivity, APC UPS products often feature multiple options including USB, RS-232, and network management capabilities. This enables users to connect remote management tools and integrate the UPS with existing IT infrastructure.

In summary, APC UPS control systems deliver reliability, efficiency, and advanced technology features that cater to a wide array of power protection needs, making them a trusted choice for individuals and businesses alike.
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